1403242541 has 2 divisors, whose sum is σ = 1403242542. Its totient is φ = 1403242540.

The previous prime is 1403242523. The next prime is 1403242553. The reversal of 1403242541 is 1452423041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 797836516 + 605406025 = 28246^2 + 24605^2 .

It is an emirp because it is prime and its reverse (1452423041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1403242541 - 2¹⁴ = 1403226157 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1403242541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1403242241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701621270 + 701621271.

It is an arithmetic number, because the mean of its divisors is an integer number (701621271).

Almost surely, 2^1403242541 is an apocalyptic number.

It is an amenable number.

1403242541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403242541 is an equidigital number, since it uses as much as digits as its factorization.

1403242541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1403242541 is about 37459.8790841615. The cubic root of 1403242541 is about 1119.5519415786.

Adding to 1403242541 its reverse (1452423041), we get a palindrome (2855665582).

The spelling of 1403242541 in words is "one billion, four hundred three million, two hundred forty-two thousand, five hundred forty-one".